It’s . . . not quite for the reasons you’d hope. Brookings’s Charles Lister explains: The radical Islamist groups supported by Qatar and Turkey and the more moderate groups backed by the U.S. and Turkey are now getting along and coordinating effectively, though the former, the extremists, remain the much better fighters. The Syrian army is also having a harder time drafting soldiers as the people’s morale wanes, meaning more of the fighting is being done by informal militias and by Hezbollah.